KR20210142933A - Actuator module of head-up display for vehicle - Google Patents

Abstract

According to one embodiment of the present invention, a driving module of a vehicle head-up display includes: a link unit having one end coupled to an aspherical mirror; a driving transmission unit for moving the other end of the link unit in an arc; a driving unit including a lead screw constituting a drive shaft and adjusting lifting and lowering of the driving transmission unit; a casing unit including a lower frame enclosing the driving unit in a state that the lead screw is penetrated and an upper frame rotatably enclosing a longitudinal end of the lead screw; and an elastic unit connected between the lower frame and the link unit to provide an elastic force. Accordingly, a load of the driving unit can be reduced.

Description

Driving module of head-up display for vehicle {ACTUATOR MODULE OF HEAD-UP DISPLAY FOR VEHICLE}

The present invention relates to a driving module of a head-up display for a vehicle.

Recently, products that support driver's safety and convenience are being released, and one of them, a head-up display (HUD) for a vehicle, is attracting attention as a diverse product group.

In general, a head-up display for a vehicle is a device that displays an image containing vehicle speed, fuel remaining, road guidance information, etc. on a windshield or combiner, which is a front window of a vehicle.

Among the components of the head-up display for a vehicle, the aspherical mirror rotates in point contact with a part of the driven force transmission unit. In this case, external force due to vibration, acceleration, friction, etc. may be concentrated at one point, and thus wear or shape deformation may occur.

Such wear or deformation of the aspherical mirror causes a decrease in the precision of the driving module, and furthermore, it is directly related to the deterioration of the optical performance of the system, so that it may be difficult to secure rigidity during the impact test.

In addition, rotational driving of the aspherical mirror requires a high-resolution rotation angle. However, the conventional driving module has limitations because it depends on the pitch of the lead screw and the resolution of the stepper motor.

The present invention has been proposed in view of the above circumstances, and the purpose of the present invention is to provide a driving module capable of reducing the load of the driving unit by using the elastic force of the elastic unit, and further preventing play in the contact unit for driving the aspherical mirror. have.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned here will be clearly understood by those skilled in the art from the following description.

A driving module of a head-up display for a vehicle according to a first embodiment of the present invention includes: a link unit having one end coupled to an aspherical mirror; a drive transmission unit for moving the other end of the link unit in an arc shape; a driving unit including a lead screw constituting a driving shaft, and adjusting the lifting and lowering of the driving transmission unit; a casing unit including a lower frame surrounding the driving unit in a state in which the lead screw is penetrated, and an upper frame rotatably surrounding the longitudinal end of the lead screw; It includes an elastic part connected between the lower frame and the link part to provide an elastic force.

The elastic portion preferably has an elastic force corresponding to the rotational driving force of the aspherical mirror.

The link part includes a fixed plate fastened to one side of the aspherical mirror; a link bar extending in a bent form on the fixing plate; and a link pin protruding from an end of the link bar.

In this case, the drive transmission unit includes a slot through which the link pin passes.

The slot is made in the shape of a long hole, and a tilting section in which the link pin moves according to the rotational operation of the aspherical mirror and a parking section are divided in the longitudinal direction.

The parking section preferably has a relatively wider upper and lower width than the tilting section.

The link pin is formed in a detachable form.

The link bar includes a reinforcing member at the bent inner portion.

The link bar includes a fastening piece to which the elastic part is connected to the bent lower part.

The casing portion includes a guide shaft spaced apart from the lead screw between the lower frame and the upper frame in parallel, and a guide ball through which the guide shaft is inserted is formed in the drive transmission unit.

A driving module of a head-up display for a vehicle according to a second embodiment of the present invention includes: a link unit having one end coupled to an aspherical mirror and a link pin formed at the other end; a drive transmission unit having a slot through which the link pin of the link unit passes; a drive unit comprising a drive motor having a lead screw constituting an axis, and adjusting the drive transmission unit up and down; and an elastic part connected between the driving transmission part and the driving part to provide an elastic force.

It is preferable that the elastic parts are connected in a vertical state and have an elastic force corresponding to the tilting driving force of the aspherical mirror.

The driving unit includes a lower frame enclosing the driving motor in a state in which the lead screw is penetrated; an upper frame rotatably surrounding the longitudinal end of the lead screw; and a guide shaft formed in parallel with the lead screw between the lower frame and the upper frame and spaced apart from each other.

The lower frame includes a fastening hole to which the elastic part is connected.

A link pin protrudes from an end of the link unit connected to the drive transmission unit, and the drive transmission unit includes: a main body for which the drive transmission unit is lifted and lowered in the longitudinal direction of the lead screw; a vertical plate extending in front of the body and having a slot through which a link pin is passed; a horizontal plate extending from the side end of the vertical plate; and a horizontal bracket of a hollow shape extending to a part of a side end of the horizontal plate and connected to an elastic part.

The drive transmission unit is formed extending from a portion of the side end of the horizontal plate, a seating piece disposed at a position adjacent to the horizontal bracket; a step protruding upwardly from the side end of the seating piece; And it includes a plate spring fitted to the seating piece in abutting state with the step.

A hook member is formed at the upper end of the leaf spring to limit the operation of the link pin passing through the slot to prevent a gap between the link pin and the slot.

A driving module of a head-up display for a vehicle according to a third embodiment of the present invention includes: a driving transmission unit configured to be lifted and lowered by a section set by the driving unit; a link unit interlocking with the drive transmission unit to adjust the tilting angle of the aspherical mirror; and an elastic part connected between the driving part and the driving transmission part to provide an elastic force.

The drive transmission unit includes a main body, a slot extending from the main body, one surface of which is open, and a clip covering the open surface of the slot.

A link pin is formed to protrude from the end of the link unit, and the drive transmission unit includes a snap stick configured to be bent in and outwardly in the lateral direction to engage the link pin.

The snap stick limits the displacement of the link pin by overlapping and engaging the link pin.

The slot is formed in a 'U' shape, and the clip is formed in a 'U' shape corresponding to the open surface of the slot and is snap-fitted to each other.

The clip consists of a slot and a detachable form.

The present invention can prevent play of the contact part (slot-link pin) for driving the aspherical mirror of the head-up display for a vehicle by using the elastic force of the elastic part.

That is, according to the present invention, by applying elastic force directly to the aspherical mirror, the backlash of the lead screw and the clearance between the link part and the drive transmission part can be removed at once.

Accordingly, the present invention can reduce the error factor of the contact portion related to the driving and reduce the load on the driving part through the elastic part made of a single spring.

1 is a view schematically showing a driving module of a head-up display for a vehicle according to a first embodiment of the present invention.
2 is a view schematically showing a driving module of a head-up display for a vehicle according to a second embodiment of the present invention.
3 is a diagram schematically showing a driving module of a head-up display for a vehicle according to a third embodiment of the present invention.
4 is an enlarged view showing a fastening relationship of a leaf spring in a driving module of a head-up display for a vehicle according to a third embodiment of the present invention;
5 is a view schematically showing a driving module of a head-up display for a vehicle according to a fourth embodiment of the present invention.
6 is a view schematically showing a driving module of a head-up display for a vehicle according to a fifth embodiment of the present invention.
7 is a partial view illustrating a fastening relationship between a slot and a clip having an open surface in the driving module of the head-up display for a vehicle according to the fifth embodiment of the present invention.
8 is a view schematically showing a driving module of a head-up display for a vehicle according to a sixth embodiment of the present invention.
9 is a view showing a fastening relationship between a link pin penetrating a slot and a leaf spring in a driving module of a head-up display for a vehicle according to a sixth embodiment of the present invention;
10 and 11 are views schematically showing a driving module of a head-up display for a vehicle according to a seventh embodiment of the present invention.
12 is a partially enlarged view of a driving module of a head-up display for a vehicle according to a seventh embodiment of the present invention;
13 is an exploded view showing a detailed configuration of a driving module of a head-up display for a vehicle according to a seventh embodiment of the present invention;
14 is a view showing an example of application of a flexible cable in a driving module of a head-up display for a vehicle according to a seventh embodiment of the present invention;

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is defined by the description of the claims. On the other hand, the terms used herein are for the purpose of describing the embodiments and are not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" or "comprising" refers to the presence or addition is not excluded.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

first embodiment

1 is a diagram schematically illustrating a driving module of a head-up display for a vehicle according to a first embodiment of the present invention.

Referring to FIG. 1 , the driving module 100 of the head-up display for a vehicle largely includes a driving unit 110 , a driving transmission unit 130 , a link unit 140 , and an elastic unit 150 .

First, after examining the above configurations, the operating relationship of the driving module 100 will be examined.

First, the driving unit 110 is controlled by a control unit (not shown) of the vehicle and provides driving force of the device. The driving unit 110 includes a driving motor 111 , a lead screw 112 , a lower frame 113 , an upper frame 114 , and a guide shaft 115 .

The drive motor 111 includes a lead screw 112 constituting an axis. In this case, the lead screw 112 is connected to the shaft of the driving unit 110 and rotates, and may be formed integrally with the driving unit 110 or may have a detachable structure that can be assembled and separated.

The lower frame 113 surrounds the driving motor 111 with the lead screw 112 penetrated therethrough. The lower frame 113 includes a fastening part (not shown) to which the elastic part 150 is connected.

The upper frame 114 is formed to extend to the lower frame 113 . The upper frame 114 rotatably surrounds the longitudinal end of the lead screw 112 . Here, a prerequisite for enclosing the end of the lead screw 112 is that it has a structure capable of maintaining the rotation of the lead screw 112 .

Therefore, it is preferable that the upper frame 122 rotatably surrounds the longitudinal end of the lead screw 112 . As an example for this, the upper frame 122 may include a rotatable member such as a bearing at an inner portion in contact with the lead screw 112 .

The guide shaft 115 is formed in parallel with the lead screw 112 between the lower frame 113 and the upper frame 114 in a spaced apart state. The guide shaft 115 serves as an auxiliary function of the lead screw 112 .

Next, the drive transmission unit 130 is raised and lowered in the longitudinal direction of the lead screw 112 by the drive unit 110 .

At this time, the drive transmission unit 130 moves the other end of the link unit 140 in an arc shape. A guide hole 139 through which the guide shaft 115 is inserted is formed in the drive transmission unit 130 .

When the drive transmission unit 130 is raised and lowered, a bearing (not shown) is preferably provided in the guide ball 139 in order to reduce friction with the guide shaft 115 .

The link unit 140 is connected between the drive transmission unit 130 and the aspherical mirror 10 . The link unit 140 is interlocked with the drive transmission unit 130 to rotate the aspherical mirror 10 in the axial direction.

Here, spherical mounts 11 are formed at both ends of the aspherical mirror 10 so as to be rotatably connected.

And the axial direction means an axial direction in which the spherical mounts 11 located at both ends of the aspherical mirror 10 are rotated.

The link unit 140 includes a fixing plate 141 , a link bar 142 , and a link pin 143 .

The fixing plate 141 is fastened to one side of the aspherical mirror 10 . In this case, the fixing plate 141 is preferably located at the side end of the aspherical mirror 10 that does not touch the spherical mount 11 .

The link bar 142 is formed to extend in a bent form on the fixing plate 141 . In this case, the link bar 142 includes a reinforcing member 142a at the bent inner portion.

The link pin 143 is formed to protrude from the end of the link bar 142 . The link pin 143 passes through the slot 133 formed in the drive transmission unit 130 , and has a displacement within the slot 133 .

Therefore, the link pin 143 is highly likely to be worn at the portion in contact with the slot 133 . In order to solve this, it is useful that the link pin 143 is formed in a detachable form.

The elastic part 150 is connected between the lower frame 113 and the link part 140 to provide an elastic force.

In more detail, the elastic part 150 is connected between the fastening hole 113a of the lower frame 113 and the fastening piece 142b formed at the bent lower end of the link bar 142 .

As shown in FIG. 1 , the elastic part 150 is made of a spring and is connected with an oblique line. When the aspherical mirror 10 is rotated in the axial direction, a load of about twice or more may be caused compared to an existing actuator (not shown). In order to solve this problem, it is preferable that the elastic part 150 has an elastic force F corresponding to the rotational driving force of the aspherical mirror 10 .

As a result, the elastic part 150 has a backlash of the lead screw 112 , a clearance between the drive transmission unit 130 , a clearance between the slot 133 of the drive transmission unit 130 and the link pin 143 , and the like. can prevent

The operation relationship of the driving module 100 is briefly summarized as follows.

The aspherical mirror 10 , the link unit 140 , the drive transmission unit 130 , and the drive motor 111 have a mutually interlocked mechanism structure.

Accordingly, when the drive motor 111 rotates, the lead screw 112 constituting the axis of the drive motor 111 rotates, and the drive transmission unit 130 interlocked with the lead screw 112 is connected to the driving motor 111 . , it is adjusted up and down according to the reverse rotation.

Here, the link pin 143 of the link unit 140 penetrates the slot 133 of the drive transmission unit 130 and has a structure that interlocks. The link unit 140 moves up and down according to the lift control of the drive transmission unit 130 . At this time, the aspherical mirror 10 interlocked with the link unit 140 rotates in the axial direction.

As a result, when the drive motor 111 operates, the drive transmission unit 130 moves, and when the drive transmission unit 130 moves, the link unit 140 operates to rotate the aspherical mirror 10 in the axial direction.

Accordingly, the elastic part 150 maintains contact with the driving transmission part 130 connected to the aspherical mirror 10 by the elastic force F, thereby suppressing a driving error.

second embodiment

2 is a diagram schematically illustrating a driving module of a head-up display for a vehicle according to a second embodiment of the present invention.

Referring to FIG. 2 , in the driving module 100 of the head-up display for a vehicle according to the second embodiment, the elastic part 150 is formed in a vertical direction instead of an oblique line. In this regard, in the second embodiment, a description of a configuration overlapping that of the first embodiment will be omitted and differences will be described.

In the second embodiment, the elastic part 150 makes contact between the driving transmission part 130 and the fastening hole 113a of the lower frame 113 with an elastic force F to suppress a driving error. In this case, the elastic force F of the elastic part 150 can withstand the total of backlash and play, and the load on the driving motor 111 can be reduced.

third embodiment

3 and 4 are views showing a modified embodiment in which a leaf spring is added in the driving module of the head-up display for a vehicle according to the third embodiment of the present invention.

Referring to FIGS. 3 and 4 in parallel, the drive transmission unit 130 is raised/lowered by the drive motor 111 .

The drive transmission unit 130 includes a body 131 , a vertical plate 132 , a horizontal plate 133 , and a horizontal bracket 134 .

The body 131 is elevated and adjusted in the longitudinal direction of the lead screw 112 .

The vertical plate 132 is formed to extend forward of the body 131 . Here, the front means the side toward which the aspherical mirror 10 faces, and the rear means the opposite side. Then, the vertical plate 132 has a slot 133 through which the link pin 143 is passed.

The horizontal plate 134 is formed extending from the side end of the vertical plate 132 .

The horizontal bracket 135 is formed to extend to a portion of the side end of the horizontal plate 134 . The horizontal bracket 135 is a portion to which the elastic part 150 is connected, and has a hollow shape.

The drive transmission unit 130 may further include a seating piece 136 , a stepped 137 , and a leaf spring 138 .

The seating piece 136 is formed to extend to a portion of the side end of the horizontal plate 134 . In addition, the seating piece 136 is disposed at a position adjacent to the horizontal bracket 135 .

The step 137 is formed to protrude upwardly from the side end of the seating piece 136 .

The leaf spring 138 is fitted and fastened to the seating piece 136 in abutting state with the step 137 .

At the upper end of the leaf spring 138 , a hook member 138a is formed to limit the operation of the link pin 143 passing through the slot 133 to prevent play between the link pin 143 and the slot 133 . .

At this time, the elastic force F directly acts on the load of the driving motor 111 , and the elastic force of the leaf spring 138 acts as a sliding force between the drive transmission unit 130 and the link pin 143 . Therefore, a relatively small load is applied to the leaf spring 138 than the elastic part 150 .

4th embodiment

5 is a diagram schematically illustrating a driving module of a head-up display for a vehicle according to a fourth embodiment of the present invention.

Referring to FIG. 5 , the end of the link pin 143 may be formed in a tapered shape that increases in width toward the end in the longitudinal direction in order to prevent it from being easily removed while being inserted into the slot 133 .

The snap stick 137 is made of a plastic material, and is curved in and outwardly of the main body 131 of the drive transmission unit 130 and has a structure engaged with the link pin 143 . In this case, the snap stick 137 has a function of limiting the displacement of the link pin 143 while overlapping and engaging with the link pin 143 .

That is, as the snap stick 137 is deformed in the left and right direction (the direction indicated by the upper arrow in FIG. 5 ), the width of the slot 133 is widened or narrowed so that the link pin 143 is the slot 133 of the drive transmission unit 130 . It has a structure that makes it easy to be fastened to or detached from.

5th embodiment

6 is a view schematically showing a driving module of a head-up display for a vehicle according to a fifth embodiment of the present invention, and FIG. 7 is a partial view showing a fastening relationship between a slot with an open surface and a clip.

6 and 7 , the driving module 100 according to the sixth embodiment differs from the above-described embodiments in a structure for limiting displacement of the link pin 143 and a structure for inserting the link pin 143 .

The drive transmission unit 130 includes a body 131 , a slot 133 , and a clip 133a. The drive transmission unit 130 has the same function as the aforementioned drive transmission unit ( 130 in FIGS. 1 to 5 ), but is different in structure.

In particular, the slot 133 is formed to extend from the body 161 and has a 'U' shape with one surface open. This is to make it easier to insert the link pin 143 into the slot 133 .

Accordingly, the end of the link pin 143 may be formed in a tapered shape that increases in width toward the end in the longitudinal direction in order to prevent it from being easily removed while being inserted into the slot 133 .

Referring to FIG. 7 , the slot 133 is formed in a 'U' shape.

The clip 163 has a 'U' shape corresponding to the open surface of the slot 133 and is snap-fitted to the slot 133 .

Here, the clip 163 is preferably formed in a form detachable from the slot 133 .

6th embodiment

8 is a view schematically showing a driving module of a head-up display for a vehicle according to a sixth embodiment of the present invention, and FIG. 9 is a view showing a fastening relationship between a link pin penetrated in a slot and a leaf spring.

Referring to FIGS. 8 and 9 in parallel, the leaf spring 138 is formed to be inclined downward from the main body 131 to the vertical plate 132 .

That is, the leaf spring 138 is made of a snap-type plastic material engaged with the link pin 143 . The leaf spring 138 provides an elastic force to the extent that the link pin 143 can be displaced without play on the slot 133 .

The slot 133 is formed in a long hole shape in the drive transmission unit 130 . At this time, the slot 133 is divided into a tilting area (A) and a parking area (B).

Here, when the aspherical mirror 10 rotates in the axial direction, the tilting section A means a displacement section of the link pin 143 of the link unit 140 interlocked therewith.

The parking section B refers to the position of the link pin 143 when the aspherical mirror 10 is placed in a parking state in which the aspherical mirror 10 does not rotate any more.

At this time, the parking section (B) is a space for facilitating assembly between the link pin 143 and the slot 133 of the link unit 140 .

Therefore, it is preferable that the parking section (B) has a relatively wider upper and lower width than the tilting section (A).

7th embodiment

10 and 11 are views schematically showing a driving module of a head-up display for a vehicle according to a seventh embodiment of the present invention, FIG. 12 is a partially enlarged view of the driving module, and FIG. 13 is a detailed configuration of the driving module It is an exploded drawing.

10 to 13 , and 10 to 13 , the driving module 100 of the head-up display for a vehicle includes a driving unit 110 , a driving transmission unit 130 , an elastic unit 150 , and a motor. and a mount 170 .

The driving module 100 according to the seventh embodiment has a structure for driving the aspherical mirror (10 in FIG. 6 ) as in the above-described embodiments, but the structure of the driving transmission unit 130 is different, and the motor mount 170 is different. is added

Hereinafter, in the description, the overlapping contents described above will be omitted and differences will be described.

The drive transmission unit 130 includes a body 131 , a slot 133 , and a clip 133b.

The slot 133 is formed to extend from the main body 131, and has an open surface. A protrusion inclined to the side from the top to the bottom is formed on the outside of the slot 133 .

The clip 133b is snap-fit fastened to the side of the open surface of the slot 133 . This clip 133b has a leaf spring structure.

The clip 133b does not close the open surface of the slot 133 . However, the clip 133b prevents the link pin ( 143 in FIG. 6 ) from being easily detached from the slot 133 while partially blocking the open surface of the slot 133 .

Accordingly, the clip 133b may correct the play of the aspherical mirror (10 in FIG. 6 ).

The drive transmission unit 130 is provided with a connecting jaw (131a) in the lower portion of the main body (131). The connecting jaw 131a has a structure in which the elastic part 150 is inserted and connected.

Accordingly, the drive transmission unit 130 may correct the clearance by using the tensile force of the elastic unit 150 connected to the connecting jaw 131a.

The motor mount 170 surrounds and protects the driving motor 111 , and the driving motor 111 is installed in the center of the body.

An upper mount 171 and a lower mount 172 are respectively formed on the upper and lower portions of the motor mount 170 . The upper mount 171 and the lower mount 172 have a structure bent in a diagonal direction with respect to the body of the motor mount 170 .

In the upper mount 171 and the lower mount 172 , a plurality of holes into which bolts are inserted are formed at intervals.

The anti-vibration coupling 180 is connected between the driving motor 111 and the lower frame 113 . In particular, the shoulder bolt 183 passes through the motor pad 184 in a state where the motor pad 184 is fitted to both ends of the lower frame 113 . A flange nut 185 is fixed to an end of the shoulder bolt 183 .

By using the rubber motor pad 184 , the vibration of the driving motor 111 is not transmitted to the lower frame 113 .

A vibration-proof coupling 180 is connected to the shaft of the driving motor 111 . Accordingly, the vibration of the driving motor 111 is not transmitted to the lower frame 113 by the use of the anti-vibration coupling 180 .

Meanwhile, the switch 116 connected to the upper frame 114 has a structure in which the drive transmission unit 130 is in contact with the drive transmission unit 130 on the path of the lead screw 112 .

This switch 116 is configured to detect the driving limit of the aspherical mirror (10 in FIG. 6 ). Therefore, the switch 116 may be connected to the lower frame 113 because it is preferably located at the end of the lead screw 112 .

14 is a diagram illustrating an example of application of a flexible cable in a driving module of a head-up display for a vehicle according to a seventh embodiment of the present invention.

Referring to FIG. 14 , a cable slit 172a is formed in the lower mount 172 of the motor mount 170 . A flexible cable 173 that is a conducting wire of the driving motor 111 is inserted into the cable slit 172a.

At this time, as shown in FIG. 14 , the flexible cable 173 has a common structure, so that it can be installed in either the left or right direction of the driving motor 111 .

Therefore, there is no need to install a separate cable for each installation position of the driving motor 111 , and only the direction of the flexible cable 173 is changed and connected. By using such a flexible cable 173, the cost is reduced.

As described above, according to the present invention, it is possible to prevent play of the contact portion (slot-link pin) for driving the aspherical mirror of the vehicle head-up display by using the elastic force of the elastic portion.

That is, according to the present invention, by applying elastic force directly to the aspherical mirror, the backlash of the lead screw and the clearance between the link part and the drive transmission part can be removed at once.

Accordingly, the present invention can reduce the error factor of the contact portion related to the driving and reduce the load on the driving part through the elastic part made of a single spring.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical spirit of the present invention.

10: Aspherical mirror 11: Spherical mount
100: drive module 110: drive unit
111: drive motor 112: lead screw
113: lower frame 113a: fastener
114: upper frame 115: guide shaft
116: switch 117: wave washer
118: bearing 119: taping screw
130: drive transmission unit 131: body
131a: connecting jaw 132: vertical plate
133: slots 133a, 133b: clips
134: horizontal plate 135: horizontal bracket
136: seated piece 136a: stepped
137: snap stick 138: leaf spring
138a: hook member 139: guide ball
140: link portion 141: fixed plate
142: link bar 142a: reinforcing member
142b: fastening piece 143: link pin
150: elastic part 170: motor mount
171: upper mount 172: lower mount
172a: cable slit 173: flexible cable
174: cable frame 180: anti-vibration coupling
181: first coupling 182: second coupling
183: shoulder bolt 184: motor pad
185: flange nut 186: nut

Claims (20)

a link unit having one end coupled to the aspherical mirror;
a drive transmission unit for moving the other end of the link unit in an arc shape;
a driving unit including a lead screw constituting a driving shaft and adjusting the lifting and lowering of the driving transmission unit;
a casing unit including a lower frame enclosing the driving unit in a state in which the lead screw is penetrated, and an upper frame rotatably enclosing a longitudinal end of the lead screw;
A driving module for a head-up display for a vehicle including an elastic part connected between the lower frame and the link part to provide an elastic force.
According to claim 1,
The elastic part
A driving module for a head-up display for a vehicle that has an elastic force corresponding to the rotational driving force of the aspherical mirror.
According to claim 1,
the link part
a fixing plate fastened to one side of the aspherical mirror;
a link bar extending in a bent form on the fixing plate; and
and a link pin protruding from an end of the link bar;
The drive transmission unit
A driving module of a head-up display for a vehicle that includes a slot through which the link pin is penetrated.
4. The method of claim 3,
the slot is
Doedoe made in the shape of a long hole, a tilting section in which the link pin moves according to the rotational operation of the aspherical mirror, and a parking section are divided in the longitudinal direction,
The driving module of the head-up display for a vehicle in which the parking section is relatively wider than the tilting section.
4. The method of claim 3,
The link pin is
A driving module of a head-up display for a vehicle that is made in a detachable form.
4. The method of claim 3,
the link bar
A driving module for a head-up display for a vehicle that includes a reinforcing member in the bent inner portion.
4. The method of claim 3,
the link bar
The driving module of the head-up display for a vehicle comprising a fastening piece to which the elastic part is connected to the bent lower part.
According to claim 1,
The casing part
and a guide shaft formed in parallel with the lead screw between the lower frame and the upper frame and spaced apart from each other,
The drive transmission unit
A driving module of a head-up display for a vehicle in which a guide ball through which the guide shaft is inserted is formed.
a link unit having one end coupled to the aspherical mirror and having a link pin formed at the other end;
a drive transmission unit having a slot through which the link pin of the link unit passes;
a drive unit comprising a drive motor having a lead screw constituting an axis, and adjusting the lifting and lowering of the drive transmission unit; and
A driving module for a head-up display for a vehicle including an elastic part connected between the driving transmission part and the driving part to provide an elastic force.
10. The method of claim 9,
the elastic part
A driving module for a head-up display for a vehicle that is connected in a vertical state and has an elastic force corresponding to the tilting driving force of the aspherical mirror.
10. The method of claim 9,
the driving unit
a lower frame surrounding the driving motor in a state in which the lead screw is penetrated;
an upper frame rotatably surrounding the longitudinal end of the lead screw; and
The driving module of the head-up display for a vehicle comprising a guide shaft formed in parallel between the lower frame and the upper frame to be spaced apart from the lead screw.
12. The method of claim 11,
the lower frame
A driving module for a head-up display for a vehicle that includes a fastening hole to which the elastic part is connected.
10. The method of claim 9,
A link pin is formed to protrude from an end of the link unit connected to the drive transmission unit,
The drive transmission unit
a body which is elevated and adjusted in the longitudinal direction of the lead screw;
a vertical plate extending in front of the main body and having a slot through which the link pin passes;
a horizontal plate extending from a side end of the vertical plate; and
The driving module of the head-up display for a vehicle is formed to extend to a portion of the side end of the horizontal plate, and includes a hollow-shaped horizontal bracket to which the elastic part is connected.
14. The method of claim 13,
The drive transmission unit
a seating piece extending to a portion of the side end of the horizontal plate and disposed at a position adjacent to the horizontal bracket;
a step protruding upwardly from a side end of the seating piece; and
The driving module of the head-up display for a vehicle comprising a leaf spring fitted to the seating piece in a state in contact with the step.
15. The method of claim 14,
At the upper end of the leaf spring
A driving module for a head-up display for a vehicle in which a hook member is formed to limit the operation of the link pin passing through the slot to prevent a gap between the link pin and the slot.
a drive transmission unit that is lifted and lowered by a section set by the driving unit;
a link unit interlocking with the drive transmission unit to adjust the tilting angle of the aspherical mirror; and
and an elastic part connected between the driving part and the driving transmission part to provide an elastic force,
The drive transmission unit
main body;
a slot extending from the main body and having an open surface; and
The driving module of the head-up display for a vehicle comprising a clip covering the open surface of the slot.
17. The method of claim 16,
A link pin is formed to protrude from the end of the link part,
The drive transmission unit
A driving module for a head-up display for a vehicle comprising a snap stick that is bent in and outward in the lateral direction and is configured to engage the link pin.
18. The method of claim 17,
the snap stick
A driving module for a head-up display for a vehicle in which a portion of the link pin overlaps and engages to limit displacement of the link pin.
17. The method of claim 16,
The slot is made in a 'U' shape,
The clip is formed in a 'U' shape corresponding to the open surface of the slot, and the driving module of the head-up display for a vehicle is to be fastened to each other by snap-fit.
20. The method of claim 19,
the clip is
A driving module of a head-up display for a vehicle that is formed in a form detachable from the slot.

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